A "TURTLENECK" IS A SWEATER WITH A VERY HIGH NECK. PIT COVERS THE NECK AND THROAT AREA WITHOUT SHOWING A SHIRT UNDERNEATH THE SWEATER

Dale, what about those fancy and fashion blouses (or would they be t-shirts) that ladies wear that actually have a high neck but short sleeves? They are made of fabrics suitable for warm weather instead of cold one. By the way, what does PIT in the sentence mean?